Specification

• RFC10023 on the IETF Datatracker

FAQ & Quiz

• English FAQ
• Nederlandstalige FAQ
• Test your knowledge of the _for-sale DNS mechanism!

Demonstrators / Validators

• Original demo / validator (superseded)
• Userfriendly lookup demo (recommended)
• Another demo / syntax validator
• Tip: Experimental AI Agent 💡
• Minimal HTTP MCP server — Source

Third-party tools (not developed by us - use at own risk)

• https://forsaledns.net/ (ForSaleDNS lookup tool and record generator)
• For-Sale MCP Server (Cloudflare Worker)

Test Domains

Click a domain to copy it to your clipboard:

Additional Information

• Information page on GitHub
• Blog post on SIDN Labs website
• One pager